Cordless RS09-MT Pro Saw
- Saw
- 18 inches
- 200 watts
- Battery
- More reviewed than 60%
A cordless saw built around a carbide edge and 18 inch rated capacity, with battery runtime left unconfirmed by the available spec.
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How it ranks among the 265 saws we track
4.4★ across 564 Amazon ratings, Bayesian-smoothed toward the category average.
564 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
300+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 265 saws we track - how the scorecard works · full saws data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
This cordless saw runs on a 21 volt battery and spins up to 3,300 RPM from a 200 watt motor, with a carbide cutting edge and a rated 18 inch cutting capacity. At 14.1 by 11 by 3.9 inches it is sized for handheld cutting away from an outlet.
A carbide cutting edge holds an edge longer than plain steel through repeated cuts, which matters for a tool aimed at branches or lumber rather than one-off cuts. Running off a 21V battery keeps it cordless for a job site or yard, though the listing does not give a battery amp-hour figure to gauge how long a charge lasts.
- 21V battery powered
- 3,300 RPM, 200 watt motor
- Carbide cutting edge
- 18 inch rated cutting capacity
Who it's for
Fits homeowners pruning branches or DIYers cutting lumber up to the rated capacity without needing a power outlet nearby. Anyone needing confirmed runtime or duty-cycle numbers should check those separately, since they are not in this data.
Strengths and trade-offs
Drawn from this product's published specifications.
- Carbide cutting edge resists dulling
- Cordless 21V battery power for outdoor use
- Rated cutting capacity up to 18 inches
- Battery amp-hour rating and runtime are not listed
- 200 watt motor is modest next to corded saws
Performance notes
The 3,300 RPM speed and 200 watt motor give it enough power for repeated cuts through branches or boards, and the carbide edge resists dulling better than uncoated steel over that use. Because battery capacity and runtime are not part of the listed spec, how long it lasts on a charge is not something this data can confirm.
Specifications
| Brand | Cordless |
|---|---|
| Model | RS09-MT Pro |
| Dimensions & fit | |
| Dimensions | 14.1 × 11 × 3.9 inches |
| Capacity & performance | |
| Capacity | 18 inches |
| Speed | 3300 rpm |
| Power & efficiency | |
| Motor Power | 200 watts |
| Power Source | Battery |
| Voltage | 21 volts |
| Construction & materials | |
| Material | Carbide |
Other Cordless saws
How it compares
This product against the closest alternatives we track in saws.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Cordless RS09-MT Pro SawThis product | 4.4 / 5 | 564 | 4.1 / 5 |
| DEWALT DCS334B SawDeWalt | 4.8 / 5 | 9,477 | 4.7 / 5 |
| SKIL 5280-01 SawSkil | 4.7 / 5 | 14,300 | 4.6 / 5 |
| Milwaukee 2719-20 SawMILWAUKEE | 4.8 / 5 | 6,485 | 4.5 / 5 |
| BLACK+DECKER BDEJS600C SawBLACK+DECKER | 4.7 / 5 | 11,123 | 4.5 / 5 |
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Questions about the Cordless RS09-MT Pro
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What power source does this saw use?
A 21 volt battery, per the listed power source spec.
What is the maximum cutting capacity?
Rated up to 18 inches, per the listed capacity spec.
What is the cutting edge made of?
Carbide, per the listed material spec.